Ubuntu Security Notice USN-1536-1

Ubuntu Security Notice 1536-1 - It was discovered that LibreOffice incorrectly handled certain encryption tags in Open Document Text (.odt) files. If a user were tricked into opening a specially crafted file, an attacker could cause LibreOffice to crash or possibly execute arbitrary code with the privileges of the user invoking the program.

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS- Ubuntu 11.10- Ubuntu 11.04

Summary:

LibreOffice could be made to crash or run programs as your login if itopened a specially crafted file.

Software Description:- libreoffice: Office productivity suite

Details:

It was discovered that LibreOffice incorrectly handled certain encryptiontags in Open Document Text (.odt) files. If a user were tricked intoopening a specially crafted file, an attacker could cause LibreOffice tocrash or possibly execute arbitrary code with the privileges of the userinvoking the program.

Update instructions:

The problem can be corrected by updating your system to the followingpackage versions:

Ubuntu 12.04 LTS: libreoffice-core 1:3.5.4-0ubuntu1.1

Ubuntu 11.10: libreoffice-core 1:3.4.4-0ubuntu1.4

Ubuntu 11.04: libreoffice-core 1:3.3.4-0ubuntu1.4

After a standard system update you need to restart LibreOffice to make allthe necessary changes.